Ashi-magari (足まがり, lit. leg turner) is a ghostly phenomenon from the folklore of Kagawa Prefecture on Shikoku, Japan.
Ashi-magari is a soft thing, like a kitten or a wad of cotton, which is felt wrapping itself around a person's leg at night, impeding the ability to walk. If they squeeze it tightly, the ashi-magari is said to feel something like the tail of an animal. While it is not generally visible, it is often believed to be a trick played by tanuki on night travellers.